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platelet
(redirected from Platelets)

   Also found in: Dictionary/thesaurus, Medical, Acronyms, Wikipedia, Hutchinson 0.03 sec.
platelet: see blood clotting blood clotting, process by which the blood coagulates to form solid masses, or clots. In minor injuries, small oval bodies called platelets, or thrombocytes, tend to collect and form plugs in blood vessel openings.
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platelet

 or thrombocyte

Small, colourless, irregular blood cell crucial in coagulation. Produced in bone marrow and stored in the spleen, platelets accumulate to block a cut in a blood vessel and provide a surface for fibrin strands to adhere to, contract to pull the strands together, and take part in the conversion sequence of coagulation factors. They also store and transport several chemicals.


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Patients with the bleeding disorder called immune thrombocytopenic purpura (ITP) harbor antibodies that sabotage production of the platelets responsible for proper blood clotting.
More than 35 percent of donated blood platelets -- used to stem internal bleeding and clot the blood of cancer patients undergoing chemotherapy -- come from out of state because people in Los Angeles are too busy to give the Vampire an hour.
Platelets are believed to play an important role in primary hemostasis, wound healing, and re-epithelialization.
 
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